<template>
  <div>
    <!-- 面包屑导航区域 -->
   <el-breadcrumb separator-class="el-icon-arrow-right">
  <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
  <el-breadcrumb-item>用户管理</el-breadcrumb-item>
  <el-breadcrumb-item>用户列表</el-breadcrumb-item>
</el-breadcrumb>
<!-- 卡片视图 -->
<el-card class="box-card">
 <!-- 搜索和添加区域 -->
 <el-row :gutter="20">
   <el-col :span="7">
   <el-input placeholder="请输入内容" clearable v-model="queryInfo.query" @clear="getUserList">
    <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
  </el-input></el-col>
  <el-col :span="4">
  <el-button type="primary" @click="addDialogVisible= true">添加用户</el-button>
  </el-col>
 </el-row>
 <!-- 用户列表区域 -->
 <el-table :data="userlist" border stripe>
 <el-table-column type="index" label="#"></el-table-column>
  <el-table-column label="姓名" prop="username"></el-table-column>
  <el-table-column label="邮箱" prop="email"></el-table-column>
  <el-table-column label="电话" prop="mobile"></el-table-column>
  <el-table-column label="角色" prop="role_name"></el-table-column>
  <el-table-column label="状态" >
    <!-- 作用域插值 -->
    <template slot-scope="{row}">
        <el-switch v-model="row.mg_state" @change="userStateChange(row)"> </el-switch>
    </template>
  </el-table-column>
  <el-table-column label="操作" width="180">
    <template v-slot:default ='{row}'>
      <!-- 修改按钮 -->
       <el-tooltip class="item" effect="dark" content="修改" placement="top" :enterable="false" >
       <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(row.id)"></el-button>
       </el-tooltip>
       <!-- 删除按钮 -->
        <el-tooltip class="item" effect="dark" content=" 删除" placement="top" :enterable="false">
       <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(row.id)"></el-button>
       </el-tooltip>
       <!-- 分配角色 -->
        <el-tooltip class="item" effect="dark" content="分配角色" placement="top" :enterable="false">
       <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(row)"></el-button>
       </el-tooltip>
    </template>
  </el-table-column>
 </el-table>
 <!-- 分页区域 -->
   <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1, 2, 5, 10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
</el-card>
<!-- 添加用户的对话框 -->
<el-dialog
  title="添加用户"
  :visible.sync="addDialogVisible"
  width="50%"
  @close="addDialogClosed">
  <!-- 内容主体区域 -->
<el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
  <el-form-item label="用户名" prop="username">
    <el-input v-model="addForm.username"></el-input>
  </el-form-item>
  <el-form-item label="密码" prop="password">
    <el-input v-model="addForm.password"></el-input>
  </el-form-item>
  <el-form-item label="邮箱" prop="email">
    <el-input v-model="addForm.email"></el-input>
  </el-form-item>
  <el-form-item label="手机" prop="mobile">
    <el-input v-model="addForm.mobile"></el-input>
  </el-form-item>
  </el-form>
  <!-- 底部区域 -->
  <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser">确 定</el-button>
  </span>
</el-dialog>
<!-- 修改用户的对话框 -->
<el-dialog
  title="修改用户"
  :visible.sync="editDiologVisible"
  width="50%"
  @close="editDialogClosed">
 <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
  <el-form-item label="用户名">
    <el-input v-model="editForm.username" disabled></el-input>
  </el-form-item>
  <el-form-item label="邮箱" prop="email">
    <el-input v-model="editForm.email" ></el-input>
  </el-form-item>
  <el-form-item label="用户名" prop="mobile">
    <el-input v-model="editForm.mobile" ></el-input>
  </el-form-item>
  </el-form>
  <span slot="footer" class="dialog-footer">
    <el-button @click="editDiologVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
</el-dialog>
<!-- 分配角色的对话框 -->
<el-dialog
  title="分配角色"
  :visible.sync="setRoleDialogVisible"
  width="50%"
  @close="setRoleDialogClosed">
  <div>
    <p>当前的用户: {{userInfo.username}}</p>
    <p>当前的角色: {{userInfo.role_name}}</p>
    <p>分配新角色:
      <!-- 下拉菜单选中后 会将选中的值保存到selectRoleId中 -->
      <el-select v-model="selectRoleId" placeholder="请选择">
        <el-option
          v-for="item in rolesList"
          :key="item.id"
          :label="item.roleName"
          :value="item.id">
        </el-option>
  </el-select>
    </p>
  </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>
  </div>
</template>

<script>
export default {
  name: 'U-sers',
  data () {
    /* 验证邮箱的规则 */
    const checkEmail = (rule, value, cb) => {
      /* 正则表达式 */
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }
    /* 验证手机号的规则 */
    const checkMobile = (rule, valu, cb) => {
      /* 验证手机号的正则表达式 */
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(valu)) {
        return cb()
      }
      return cb(new Error('请输入合法的手机号'))
    }
    return {
      // 获取用户列表的参数对象
      queryInfo: {
        query: '',
        /* 当前页数 */
        pagenum: 1,
        /* 当前每页显示多少条数据 */
        pagesize: 2
      },
      /* 查询出来的用户集合 */
      userlist: [],
      /* 总数 */
      total: 0,
      /* 控制对话框的显示和隐藏 */
      addDialogVisible: false,
      /* 添加用户的表单数据 */
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      /* 添加表单的验证谷子额 */
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', triiger: blur },
          { min: 3, max: 10, message: '用户名的长度在3~10个字符之间', triiger: blur }
        ],
        password: [
          { required: true, message: '请输入密码', triiger: blur },
          { min: 6, max: 15, message: '用户名的长度在6~15个字符之间', triiger: blur }
        ],
        email: [
          { required: true, message: '请输入邮箱', triiger: blur },
          { validator: checkEmail, triiger: blur }
        ],
        mobile: [
          { required: true, message: '请输入电话号码', triiger: blur },
          { validator: checkMobile, triiger: blur }
        ]
      },
      /* 控制修改用户对话框的显示和隐藏 */
      editDiologVisible: false,
      /* 查询到的用户信息 */
      editForm: {},
      /* 修改用户的校验规则 */
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', triiger: blur },
          { validator: checkEmail, triiger: blur }
        ],
        mobile: [
          { required: true, message: '请输入用户的手机号', triiger: blur },
          { validator: checkMobile, triiger: blur }
        ]
      },
      /* 控制分配角色对话框的显示和隐藏 */
      setRoleDialogVisible: false,
      /* 需要被分配角色的用户信息 */
      userInfo: {},
      /* 所有角色的数据列表 */
      rolesList: [],
      /* 您选中的角色id */
      selectRoleId: ''

    }
  },
  methods: {
    /* 获取用户列表 */
    async getUserList () {
      const { data: res } = await this.$http.get('/users', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取用户列表失败')
      /* 获取数据 */
      this.userlist = res.data.users
      this.total = res.data.total
    },
    /* 监听 pagesize改变的事件 */
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    /* 监听页码值改变的时间 */
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    /* 监听switch开关状态的改变 */
    async userStateChange (userInfo) {
      const { data: res } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      return this.$message.success('更新用户状态成功')
    },
    /* 监听添加用户的关闭事件 */
    addDialogClosed () {
      this.$refs.addFormRef.resetFields()
    },
    /* 添加用户事件 */
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        /* 发起添加用户的网络请求 */
        const { data: res } = await this.$http.post('/users', this.addForm)
        if (res.meta.status !== 201) this.$message.error('添加用户失败!')
        // 添加用户请求成功
        this.$message.success('添加用户成功')
        /* 重新获取用户的列表 */
        this.addDialogVisible = false
        /* 重新刷新页码 */
        this.getUserList()
      })
    },
    /* 展示编辑用户的对话框 */
    async showEditDialog (id) {
      const { data: res } = await this.$http.get(`/users/${id}`)
      if (res.meta.status !== 200) return this.$message.error('查询用户失败')
      this.editForm = res.data
      this.editDiologVisible = true
    },
    /* 监听修改用户对话框的关闭事件 */
    editDialogClosed () {
      /* 重置事件 */
      this.$refs.editFormRef.resetFields()
    },
    /* 修改用户信息进行预验证 */
    editUserInfo () {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        /* 发起请求 */
        const { data: res } = await this.$http.put(`users/${this.editForm.id}`,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          })
        if (res.meta.status !== 200) return this.$message.error('更新用户信息失败')
        /* 关闭对话框 */
        this.editDiologVisible = false
        /* 属性数据列表 */
        this.getUserList()

        /* 提示修改成功 */
        this.$message.success('更新用户信息成功')
      })
    },
    /* 根据id删除对应的用户信息 */
    async removeUserById (userId) {
      /* 询问用户是否删除 */
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(error => error)
      /* 如果用户取消了删除,则返回值为取消的字符串 */
      if (confirmResult !== 'confirm') return this.$message.info('已经取消删除')
      /* 删除用户 */
      const { data: res } = await this.$http.delete(`users/${userId}`)
      if (res.meta.status !== 200) return this.$message.error('删除用户失败')

      this.$message.success('用户删除成功')
      /* 刷新数据 */
      this.getUserList()
    },
    /* 展示分配角色的对话框 */
    async setRole (userInfo) {
      this.userInfo = userInfo
      /* 在展示对话框之前 获取所有角色的列表 */
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) return this.$message.error('获取角色列表失败')
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    /* 点击按钮分配角色 */
    async saveRoleInfo () {
      if (!this.selectRoleId) return this.$message.error('请选中要分配的角色')
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectRoleId })
      if (res.meta.status !== 200) return this.$message.error('更新角色失败')
      this.$message.success('更新角色成功')
      /* 刷新页面数据 */
      this.getUserList()
      /* 隐藏对话框 */
      this.setRoleDialogVisible = false
    },
    /* 监听重置对话框的选项 */
    setRoleDialogClosed () {
      this.selectRoleId = ''
      this.userInfo = ''
    }
  },
  created () {
    this.getUserList()
  }
}
</script>

<style lang="less" scoped>
</style>
